Attentive teenage boy in classroom, listening to lecture.
Palabras clave
teenage,
boy,
student,
classroom,
lecture,
school,
education,
learning,
youth,
teenage,
attentive,
listening,
sharpened,
concentration,
teenage,
children,
children,
pupil,
class,
lesson,
seminar,
college,
university,
high school,
middle school,
young,
people,
person,
male,
teenage,
group,
student,
sitting
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